Patent GB-218322-A (GB)
Abstract: 218,322. Siemens & Halske Akt.-Ges. June 29, 1923, [Convention date]. Factory and like time-recorders, card-type; time, computing; locking time type-wheels.- Apparatus adapted to record at each actuation the time of entry of exit, and the working time which has elapsed since the beginning of a shift, and to take into consideration several overlapping shifts comprises a clock 3 driving date and time type wheels 4 through a shaft 9, bevel gearing 11, a shaft 12 and gear-wheels 14, 15 and also driving at the rate of one revolution per shift a shaft 33 on which are loosely mounted four wheels 27 each of which computes the time which has elapsed since the beginning of one particular shift. Housed in recesses in the wheels 27 are toothed driving wheels 34 fixed to the shaft 33, and pawls 35 which transmit the drive to the wheels 27 in the direction of the arrow, Fig. 4. During non-working periods in the course of a shift the wheels 27 are arrested oy levers 36 which are rocked to engage the teeth of the wheels by pins 37 faxed in apertures in a disc 38 rotated once in twelve hours from the shaft 12, the pawls 35 then riding over the teeth of the driving- wheels 34. The pins 37 are of different lengths so that each of them co-operates with one of the levers 36, and the shaft 39 of the disc 38 is slidable axially and is adjusted by a cam-wheel 44 rotated from the shaft 39 by a pin 50 and starwheel 48 so that for different days of the week a different combination of pins controls the levers 36, variations in the working times thus being allowed for. Each wheel 27 had an abutment 57 adapted to be in the path of a pin 58 on a corresponding axially - adjustable transporting wheel 59 when this wheel has been moved towards the wheel 27. A record card 8 having a recess 83 of different depth for each of the four shifts is introduced into a funnel 7, the longitudinal edge of the recess resting on an abutment 85, and the card is pressed to the right, as shown in Fig. 2, by a card guide 86 acted on by springs 88 when the handle 5 is operated. The depth of the recess 83 determines the position of a toothed sector 91 connected with the card guide and meshing with a pinion 96 on a shaft 97 carrying four cams 98. Movement of the operating lever 5 causes a bevelled lever 99 to force the shaft 97 towards the left, Fig. 1, against the action of a spring 84 so that one of the cams 98 rocks one of four levers 60 to move the transporting wheel 59 for the particular shift towards the corresponding wheel 27. Futher movement of the handle drives through gearing 104, 109, 110, 111 a shaft 16 having pinions meshing with the transporting wheels, which are thus turned until the pin 58 is stopped by the abutment 57. The shaft 16 drives time type-wheels 62 - - 65 which will then be set for the time elapsed since the beginning of the shift less the non-working periods. A hammer 71 having four heads and acted on by springs 114 put under tension by movement of the handle 5 is then released to hit a stamp for the date and time, one of two stamps 69 for the elapsed time and a knife 82 to extend the recess 83 upwards in the usual manner. On entry the right band stamp 69, Fig. 2, only is hit by the hammer, and on exit the left-hand stamp only, the selection being made by staggered holes 67 punched in the card coacting with feelers 79 on the stamps 69. In any position of the card one feeler 79 takes through a hole, positioning the corresponding stamp in the path of the hammer, the other stamp being held out of the path by its feeler contacting with the card. Each wheel 27 is held in its zero position by having a stop 130 abutting again a lever 131 which is rocked out of the path of the stop by special pins on the disc 38 at the beginning of the shift. The type-wheels are fixed in the position for printing by a pawl 125 moved by the operating handle to engage a star wheel 124 on the shaft 16. A motor switched on by the workman may be employed to drive the operating mechanism, and may be automatically switched off when the record has been made. To find the total number of hours worked the two columns of elapsed time values are added and their difference obtained.